BACKGROUND Patients with supraventricular tachycardia (SVT) commonly present to the emergency department (ED). Current guidelines do not recommend routine pathology testing and a report on the topic has questioned their role. A systematic review concluded that troponin testing is commonly performed with a high proportion of positive findings, but these results were not associated with major adverse cardiac events. The conclusions of this review were limited by paucity of data and heterogeneity among studies.